Inking apparatus for printing presses



(No Model.) 2 Sheets--Sheet 1.

' J. L. COX.

INKING APPARATUS FOR PRINTING PRESSE S. 7 No. 502,618. Patented Aug. 1, 1-893.

l/ULIUUULI Mil/268s es Inventor:

Joseph; L Cox 2 Sheets+Sheet 2;

(No Model.)

J. -L. COX. I INKING APPARATUS FOR PRINTING PRES$ES. No. 502,618.

Patented Aug. 1, 1893.

UNITED STATES PATENT OFFICE.

JOSEPH L. COX, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO THE DUPLEX PRINTING PRESS COMPANY, OF SAME PLACE.

INKING APPARATUS FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 502,618, dated. August 1, 1893. Application filed December 9,1892. Serial No. 454,654. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH L. COX, of Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvementsin Inking Apparatus for Printing-Presses and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

This invention is an improvement on the inking devices shown in myPatent bio/178,503, granted July 5, 1892, but is also applicable to various forms of stationary bed, and traveling cylinder presses.

Its object is to uniformly ink the forms during both the forward and backward movements of the cylinders so that impressions of uniform color may be produced at each movement thereof.

The invention consists briefly in the employment of a double set of form rollers, and various vibrating, distributing form-inking and ductor rollers, journaled in the traveling carriage, one set on each side of both impression cylinders and so arranged as to reciprocate with the same, and to take a given quantity of ink from supply fountains, arranged at both the front and back of both upper and lower beds, and after distributing the same sufficiently over the faces of the various rollers mentioned, to double roll the color and discharge it upon the faces of the type forms, from which an impression is to be made at each travel thereover of the reciprocating cylinders, all said rollers preferably being so arranged and geared to the cylinders or racks upon the frames by means of intermediate gears or otherwise, as to insure a positive speed in travel of the peripheries thereof, thereby preventing scuffing of the surface of the form rollers as they come in contact with the face of the type. I also so operate the fountain rollers by cams or other means as to speed their peripheries to correspond with the speed of the face of the ductor rollers on the carriage when the latter contacts with the fountain rollers, and rotate a sufficient while to gather the desired amount of color to be afterward thoroughly distributed through the various rollers before being applied to the type all of which will be hereinafter clearly described and claimed.

In the drawingsz-Figure 1 represents a detail side elevation of a flat bed reciprocating cylinder Web perfecting press equipped with my improved inking devices. Fig. 2 is a detail transverse sectional View of the same. Fig. 3 is a detail vertical sectional View through a cylinder and inking devices. Fig. 4 is a detail view of a vibrator roller. Fig. 5 is a detail.

The press indicated in the drawings is substantially similar in construction and operation to that described in my above mentioned patent. The type beds h, h being parallel and one above the other, the reciprocating cylinders H, H being connected to a carriage v Y which is reciprocated back and forth by means of a pitman E connected to crank wheels, not shown, or other suitable means.

On each side of each impression cylinder are two parallel form rollers A, A, which may be mounted in adjustable boxes A attached to the carriage Yor bars Y Y secured thereto as shown,so that said form rollers will supply ink to the forms on the respective beds h, h. Each pair of rollers A, A, receives ink from a vibrator distributing roller B, and roller B from a transfer roller C, and the latter from a ductor roller D. Rollers B, C, are journaled in webs or Wings 3 of carriage Y, and ductors D are journaled in hangers D attached to the webs y as shown. The rollers B, C, D, are arranged as shown, so that ductors D are farther from the adjoining cylinder than the outermost form roller, and above the latter. The adjoining rollers B, C, are intergeared by gears 11, c, on the ends of their shafts as shown, and are driven by gears f from a gear F on the end of the adjoining cylinder which meshes with a rack on the bed. The rollers A, A, andD will be revolved by frictional contact with rollers 13, C, and the gearing is such that the form rollers will be speeded so that they will roll over the type forms without scuffing their surfaces as will occur when the form rollers are inert and 100 are revolved only by contact with the forms. Each roller B may have one end B of its shaft screw threaded to engage a screwthreaded bearing B attached to the carriage so that as the roller revolves it will be longitudinally shifted also, the driving pinionsbeing made sufficiently wide to allow this, and asthe roller revolves alternately in opposite directions it will be vibrated in relation to the form rollers, as in other inking devices. The respective ductor rollers D receive ink from fountain rollers I arranged in proper fountains t' at each end of each bed in such position that the proper ductor roller contacts therewith when the carriage is at the adjoining end of the type beds. Each roller I has a ratchet wheel I on its end which is engaged by a dog J on a rocking armj pivoted on the end of the roll shaft. The armsj of the upper and lower ink fountain at each end of the press are pivotally connected by a vertical bar K which is uplifted normally by means of a rod is which plays through a lug 76' on the press frame, and is lifted by a helical spring as shown. Spring 70 can be tensioned by means of nuts or collars on the rod by which the vertical movement thereof is limited.

Bars K are depressed at the proper time by means of cam arms Y attached to carriage Y in position to engage lugs or friction rollers K on said bars alternately so that as the carriage nears the end of its stroke, a cam arm Y will engage roller K and depress bar K thereby rocking arms j and rotating the rollers I by means of the ratchet and pawl as will be apparent from the drawings. 70 are stops attached to the frame beside bars K, to prevent binding t'hereof, when cam-arms Y contact therewith. The cam arms Y project beyond the ductor rollers D, and contact rollers K before the ductor rollers D contact the fountain rollers I. The ink rollers I are therefore rotated just before the ductor rollers D contact therewith, and injury to these rollers is prevented and a more equally divided supply of ink is taken by rollers D. The rollers D are rotated by contact with rollers I, and as they rotate are moved against rollers C, and deliver ink thereto. The rollers D can ride upon rollers I to prevent injury thereto by undue compression between rollers O and I. A handle 70 may be attached to bars K so that they can be vibrated by hand if desired to work up color or in cleaning the press. Paper web guide rollers 11 are also mounted in the carriage at opposite sides of each cylinder.

From the foregoing it will be understood that I fresh ink the type forms in both the forward and backward movements of the cylinder carriage without employing any transfer rollers or belt for carrying ink from one set of distributing rollers to the other. I am thereby enabled to produce impressions perfectly uniform in color, and as will be seen the web of paper is guided above the inking devices adjoining the respective cylinders.

Having described my invention, what I claim as new, and desire to secure by Letters Patent thereon, is-

1. In a printing press the combination of a type bed, ink fountain at each end thereof, a reciprocating impression cylinder, a set of form and distributing rollers, and a ductor roller journaled in swinging hangers at each side of the impression cylinder and travellng therewith, and means for driving said distributing rollers while being reciprocated with the cylinder, substantially as described.

2. In a printing press the combination of a type bed, ink fountains at each end thereof, a reciprocating impression cylinder, a set of form and distributing rollers, and a ductor roller j ournaled in swinging hangers at each side of the impression cylinder and traveling therewith, and means for driving said distributin g rollers while being reciprocated with the cylinder, and means for rotating the fountain rollers when the ductors contact therewith, substantially as described.

3. The combination with atype bed and ink fountains at each end thereof, and a reciprocating cylinder traveling thereon, with form and distributing and ductor rollers and web guide rollers mounted on each side of and traveling with the reciprocating cylinder, the ductor rollers being journaled in vibrating supports and adapted to respectively contact said ink fountains, and means for positively driving said distributing rolls during their reciprocation, substantially as described.

4. In a printing press the combination of two type beds ink fountains at each end thereof, two reciprocating impression cylinders, a set of form and distributing rollers, and a ductor roller journaled in vibrating supports at each side of each impression cylinder and traveling therewith, and gearing for driving said distributing rollers from the cylinders while being reciprocated therewith, substantially as and for the purpose specified.

5. In a printing press the combination of a type bed, an ink fountain at each end thereof, a reciprocating impression cylinder, form and distributing inking rollers at each side of and traveling with said cylinder, and ratchets on the ends of the fountain rollers, the rocking pawls engaging these ratchets, vibrating bars connected to said pawls, and cam arms on the carriage adapted to alternately depress said-- bars, thereby intermittently rotating the fountain rollers to supply ink to the distributing rollers, substantially as described.

6. In a printing press the combination of a type bed, an ink fountain, at each end there of, a reciprocating impression cylinder, a set of form and distributing rollers, and a ductor roller suspended in swinging hangers at each side of the impression cylinder and traveling therewith, and means for positively rotating the fountain rollers as the ductor contacts therewith, substantially as described.

7. In aprintingpress thecomloinationof two type beds, ink fountains at each end thereof,

two reciprocating impression cylinders, a set of form and distributing rollers, and a duetor roller at each side of each impression cylinder and traveling therewith, and means for driving said distributing rollers While being reciprocated with the cylinders, and ratchets on the ends of the fountain rollers, the rocking pawls engaging these ratchets, vibrating bars connected to said pawls, and cam arms on the carriage adapted to alternately depress said bars thereby positively rotating the fountain rollers as the cylinders reach the adjoining ends of the beds, substantially as and for the purpose described.

8. The combination of a type bed, an ink supply at each end thereof, a reciprocating cylinder and its carriage, form and inking rollers journaled in said carriage at each side of the cylinder, the swinging hangers D on the carriage, and the ductor rollers journaled 20 therein, substantially as described.

9. The combination of an ink fountain roller, a ratchet on the end thereof, a rocking arm carrying a pawl engaging said ratchet, and a reciprocating spring-controlled bar for vibratin g said arm; with a reciprocating carriage and ink rolls carried thereby, and a cam arm thereon adapted to depress said bar, all constructed and arranged to operate substantially as and for the purpose described. 30

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JOSEPH L. COX.

Witnesses:

ALEX. S. STEUART, A. E. DoWELL. 

